Belkin F8E211 Betriebsanweisung PDF herunterladen (Seite 31)

 2006, QNX Software Systems GmbH & Co. KG. Functions arranged by category

Functions arranged by category

The USB functions may be grouped into these categories:

Connection functions

Memory-management functions

I/O functions

Pipe-management functions

Conﬁguration/interface functions

Miscellaneous functions

Connection functions

usbd connect() Connect a client driver to the USB stack.

usbd

disconnect()

Disconnect a client driver from the USB stack.

usbd

attach() Attach to a USB device.

usbd

detach() Detach from a USB device.

Memory-management functions

usbd alloc() Allocate memory area to use for data transfers.

usbd

free() Free memory allocated by usbd alloc().

usbd

mphys() Get the physical address of memory allocated by

usbd

alloc().

usbd

alloc urb()

Allocate a USB Request Block for subsequent

URB-based operations.

usbd

free urb() Free the URB allocated by usbd alloc urb().

November 2, 2006 Chapter 4 USB Library Reference 19

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Belkin F8E211 Betriebsanweisung Seite 31